Essential Trigonometry

Trigonometry is the mathematical discipline concerned with investigating the connections between the side lengths and angles of triangles. Regarded as the cornerstone of applied geometry, trigonometry explores real functions linking angles of right-angled triangles to ratios of side lengths, known as trigonometric functions. These functions have extensive applications across various fields such as music theory, optics, astronomy, medical imaging, and electronics. In astronomy, trigonometric methods like triangulation aid in measuring the distances to nearby stars. Significant concepts within trigonometry include triangle identities and trigonometric identities. This book provides significant information of the discipline of trigonometry to help develop a good understanding of applied geometry and related fields. While understanding the long-term perspectives of the topics, the book makes an effort in highlighting their impact as a modern tool for the growth of the discipline. It aims to serve as a resource guide for students and experts alike and contribute to the growth of the discipline.